Sintered Bronze Self Lubricating Bushes
Bearing and Bush Co established in the year 1997,
is recognized as one of the leading Manufacturer &
Exporter of an assortment of
Bearing, Bushes, Dry Washer, Flanged Washer, Automotive
Washer, Pump Washer, Metal Washer
and parts that are utilized in automotive industry.
We at Bearing and Bush Co, manufacture a wide range
of products using high-quality sintered bronze (self-
lubricating) raw materials in compliance with IS:
3980:1982 standards. Our product portfolio includes
automotive bearings, automotive spare parts, plain and
flanged bushes, solid rods, self-aligning bushes, and
customized profile components developed as per client
drawings or samples. These products find applications
across home appliances, the textile sector, and various
other industries.
Sintered Bronze Bushes (also called
Self-Lubricating Bronze Bushes) are
precision-engineered components used in machinery to
reduce friction between moving parts. They are porous
metal bearings made from bronze powder using a process
called Sintering (heating powdered metal below its melting
point until it bonds together).
Sintered Bronze Bushes
Bronze Bushes Parts
Working Principle of Sintered Bronze Bushes
Sintered bronze bushes operate on a porosity-based self-lubrication system created through powder metallurgy. The porous structure stores lubricating oil that is released during operation to reduce friction and wear.
- Manufactured using bronze powder sintering process
- Porous structure (15–25%) retains lubricating oil
- Oil is released during operation due to heat and motion
- Oil is reabsorbed when system stops, enabling continuous lubrication cycle
Types of Sintered Bronze Bushes
Sintered bronze bushes come in a wide variety of types to suit different industrial needs—from simple plain bushes to complex custom-engineered components. Their key advantage lies in self-lubrication, durability, and low maintenance, making them essential in industries like automotive, textile, electrical, and machinery manufacturing. They are available in several types based on design, application, and functionality:
- Plain Sintered Bronze Bushes: They are Cylindrical in shape (simple sleeve design) and the most commonly used type. They are suitable for general-purpose applications and widely used in Motors, Pumps, and Household Appliances .
- Flanged Sintered Bronze Bushes: Have a flange (collar) on one side, Helps in axial positioning and prevents movement, Ideal for applications where load is both radial and axial Used in automotive and industrial equipment.
- Self-Aligning Bushes: Designed to accommodate minor shaft misalignment, Reduces wear and increases lifespan , Often used in machinery where alignment is difficult to maintain
- Thrust Washers (Thrust Bushes): Flat, washer-like components, Used to handle axial loads , Often used along with plain bushes .Common in gear assemblies and rotating equipment
- Spherical Bronze Bushes: Feature a spherical outer or inner surface Allow angular movement and misalignment Suitable for dynamic and oscillating applications.
- Oil-Impregnated Bushes: Pre-filled with lubricating oil , Provide continuous lubrication during operation Reduce maintenance and increase efficiency , Ideal for high-speed and low-maintenance systems.
- Custom Profile Bushes: Manufactured as per specific drawings or samples . Can include complex shapes and sizes Used in specialized industrial and automotive applications
- Automotive Bronze Bushes: Designed specifically for automotive components Used in suspension systems, starters, alternators, etc.
- Textile Machine Bushes: Tailored for textile industry applications Ensure smooth operation at high speeds Resistant to dust and continuous operation conditions.
Frequently Asked Questions
Common applications include:
The process includes Powder compacting, Sintering (heating below melting point) , Sizing Oil impregnation
Typically: Bronze (copper + tin) . Sometimes iron or graphite additives. Material composition is controlled for strength and porosity.
Generally no regular lubrication is required, but Clean environment improves life and Periodic inspection is recommended
Sintered Bronze Bushes application industries
Sintered bronze bushes (self-lubricating bearings) are widely used across multiple industries due to their durability, low maintenance, and ability to operate without external lubrication. Below are the key application industries:
- Automotive Industry
- Electrical & Electronics Industry
- Textile Industry
- Industrial Machinery
- Agricultural Equipment
- Construction Equipment
- Aerospace & Defense
- Medical Equipment
- Renewable Energy Sector
- General Engineering & Consumer Products